Box-forming and pressure apparatus.



L. M. COLE.

BOX FORMING AND PRESSURE APPARATUS. APPLICATION FILED JAN. 12, 1915.

mmm v A Patntd Apr. 18, 1916.

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LOUIS IVI. COLE, OF LOS ANGELES, CALIFORNIA.

BOX-FORMING AND PRESSURE APPARATUS.

Application filed January 12, 1915.

To all whom it may concern Be it known that I, LOUIS M. COLE, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles, State of California, have invented new and useful Improvements in Box-Forming and Pressure Apparatus, of which the following is a specification.

This invention relates to a box forming and pressure apparatus.

It is the object of this invention to provide a device for forming boxes, particularly those constructed of corrugated or cushion board, for use in packing fruit jars and other glass containers. In forming boxes of the above character, considerable difliculty is experienced in forming the bottom portion of the box by overlapping the side and end flaps and securing the flaps together by reason of their resiliency and consequent tendency to pull apart; the corrugated paper board being of such character that the fold lines cannot be scored to facilitate the bending of the flaps, as is the practice in the manufacture of paper boxes.

It is a further object of this invention to provide a device for clamping or pressing the overlapping flaps formingthe bottom of the box together after the same have been folded on their adjacent faces with an adhesive substance, and by which the flaps may be maintained in their folded position until the adhesive substance is sufficiently dry to cause the flaps to adhere together.

Another object is to provide a box of the above character in which the box can be quickly formed and the clamp or pressing device speedily applied and removed.

The invention is illustrated in the accompanying drawings, in which:

Figure 1 is a view in side elevation of the formlng and clamping device, with the weighted clamp shown in the open position in full lines, and in its operative position in dotted lines. Fig. 2 is a front elevation of same showing the clamp in its operative position. Fig. 3 is a perspective view of the box form, showing it as assembled to form its side and end walls. Fig. 4 is a perspective View illustrating the rectangular box form as positioned on the forming block of the device. Fig. 5 is a perspective view illustrating the manner of folding'the bottom forming flaps of the box over the form- Specification of Letters Patent.

Patented Apr. 18, 1916.

Serial No. 1,802.

ing member prior to subjecting them to the actlon of the weighted clamp. Fig. 6 is a perspective view illustrating the box as disposed on the form member, with the bottom flaps secured together.

. More specifically 10 indicates a frame of any suitable construction, which forms a support for a shelf 11. Mounted on the shelf 11 is a rectangular forming member 12, the upper face 13 of which extends parallel with the shelf 11 and forms a seat against which the bottom forming flaps of the box are clamped, as will be later described.

Pivotally mounted at 14 on the rear edge of the shelf 11, is an arcuate arm 15, on the outer end of which is mounted a rectangular weighted block 16, of a size slightly larger than the face 13 of the forming member 12; the arcuate arm 15 and the block 16 being so arranged in relation to each other that when the arm 15 is rocked forwardly to its uppermost position, the block 16 will seat on the forming member 12, as indicated in dotted lines in Fig. 1.

As a means for facilitating the rocking of the arm 15, the latter is fitted with a handle 17 arranged adjacent the weighted block 16, by means of which the arm 15 may be manually rocked to its forward position or retracted to its rearmost or inoperative position. The rearward movement of the arm 15 is limited by means of a stop, here shown as consisting of a pair of diagonal braces 18 and 19, carried by the frame 10,

between which the arm 15 extends; the.

braces 18 and 19 being so positioned as to engage the rear edge of the weighted block 16 to support the latter in its inoperative position clear of the forming member 12, as shown in full lines in Fig. 1.

The box, of which the bottom is formed by the use of this device, is constructed of the ordinary corrugated or cushion board of commerce, preferably of a single sheet which is bent in the form of a rectangle to form the sides and ends of the box, as particularly shown in Fig. 3; the ends of the sheet being secured together in any desired manner. The rectangular blank 20 thus formed is of such length and breadth as to snugly receive the forming member 12, around which it is placed, as shown in Fig. 4.

The end walls of the box form 20 is formed with flaps 21-and 22, and the side walls are formed with flaps 23 and 24; the flaps 23 and 24 being of such width that their edges will abut when folded inwardly at right angles to the sides of the box.

The forming member 12' is of such height that when the box form 20 is placed therearound, as shown in Fig. 4, the upper edge of the forming member 12 will be positioned at the base of the flaps 21, 22, 23 and 24.

To form the bottom of the box the end flaps 21 and 22 are first bent over the end edges of the forming member 12, as shown in Fig. 5, whereupon their upper surfaces are coated with a suitable adhesive material. The side flaps 23 and 24 are then turned over the flaps 21 and 22, whereupon the arcuate arm 15 is rocked forwardly by means of a handle 17 to position the weighted'block 16 on .top of the folded flaps 23 and 24, as shown in dotted lines in Fig. 1.

The block 16 is of such weight as to securely and firmly clamp the flaps 21, 22, 23 and 24 against the upper face of the form ing member 12, thereby tightly pressing the flaps 23 and 2 4'against the flaps 21 and 22. The blank is left in this position on the forming member 12, with the weighted block v16 on the bottom forming'fiaps until the adhesive substance sufficiently hardens to cause the flaps 23 and 24 to adhere to the flaps '21 and22, whereupon the arm 15 is rocked to its rearward position 'and'the box form removed. The open end of the box is copies otthis patent may be obtained for sealed in the usual manner after the contents have been placed in the box.

In the employment of the present invention it is desirable to arrange a series of devices in a battery so that a large number of boxes may be in progress of manufacture at one time, the operator removing the completed boxes and placing the box blanks on certain of the forming members 12, while the bottoms are being formed on other forming members by the action of the pressure clamping blocks 16.

That I claim is:

A box forming device, comprising a frame, a forming member adapted to receive a rectangular box blank having side and end flaps mounted on said frame, said forming member having a fiat upper face over which the side and end flaps of the box are adapted to be folded to form the bottom of the box, an arcuate arm pivoted adjacent the rear and lower face of said form, and a weighted pressure plate rigidly secured to the outer end of said arm adapted on rocking the arm to its forward position to gravitate into a seated position on the folded flaps to subject the latter to pressure.

In witness that I claim the foregoing I have hereunto subscribed my name this 19th day of December, 1914.

LOUIS M. COLE.

Witnesses:

EDMUND A. STRAUSE, MARGUERITE BATES.

Washington, D. 0. 

